TENSION STRENGTH AND SHEAR STRESS DISTRIBUTION OF GFRP STRENGTHENING CONCRETE BEAM

Abstract

Abstract:

To investigate the tension strength of glass fiber， axial tension experiments were

carried out for five specimens with or without impregnating compounds. The experiments indicated

that the epoxy resin could not only stick and protect glass fiber plates， but also increase its

tensile strength. To deeply understand mechanical behavior of GFRP strengthening concrete structure

， nine specimens were tested by beams′ fourpoint bending experiments. One of the specimens was

stick with strain gauges for tracking the failure process. Then， the damage process curves of the

experiments and strain values were obtained. Comparison with two kinds of experiments， axial

tension strength of glass fiber plates was greater than the strength of fourpoint bending test.

Through the test data of concrete beam with GFRP and mechanics model analysis， the axis force and

shear stress distribution of GFRP were analyzed respectively.

Key words: concrete beam, GFRP plates, tension strength, electrical measurement, shear stress distribution

CLC Number:

TU528.57

Ge, X. X., Zhang, D. H., Wang, L. M..
TENSION STRENGTH AND SHEAR STRESS DISTRIBUTION OF GFRP STRENGTHENING CONCRETE BEAM[J]. Fiber Reinforced Plastics/Composites, 2009, 205(6): 5-11.

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[1]	QI Hong-qiang, ZHOU Zheng-liang, ZHANG Shou-yu, ZHAO Da-juan. THE STUDY OF ELECTRICAL AND MECHANICAL PROPERTIES OF 3D COMPOSITES [J]. Fiber Reinforced Plastics/Composites, 2017, 0(10): 68-71.
[2]	Zeng, X. T., Ding, Y. H., Li, H. M. . EXPERIMENTAL STUDY OF CONCRETE BEAMS STRENGTHENED WITH PRESTRESSED GLASS FIBER REINFORCED PLASTICS [J]. Fiber Reinforced Plastics/Composites, 2007, 197(5): 3-6.

TENSION STRENGTH AND SHEAR STRESS DISTRIBUTION OF GFRP STRENGTHENING CONCRETE BEAM

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